3667841 has 2 divisors, whose sum is σ = 3667842. Its totient is φ = 3667840.

The previous prime is 3667837. The next prime is 3667849. The reversal of 3667841 is 1487663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3225616 + 442225 = 1796^2 + 665^2 .

It is a cyclic number.

It is not a de Polignac number, because 3667841 - 2² = 3667837 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3667849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833920 + 1833921.

It is an arithmetic number, because the mean of its divisors is an integer number (1833921).

Almost surely, 2^3667841 is an apocalyptic number.

It is an amenable number.

3667841 is a deficient number, since it is larger than the sum of its proper divisors (1).

3667841 is an equidigital number, since it uses as much as digits as its factorization.

3667841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 3667841 is about 1915.1608287556. The cubic root of 3667841 is about 154.2186274651.

The spelling of 3667841 in words is "three million, six hundred sixty-seven thousand, eight hundred forty-one".